学术: learning, science, academic...
姐妹: sisters, siblings, sister (school, city etc)...
泡: bubble, foam, blister (i.e. skin bubble), to soak, to steep, to infuse, to dawdle, to shilly-shally, to hang about, to pick up (a girl), to get off with (a sexual partner), classifier for occurrenc...
自始至终: from start to finish (idiom)...
奢侈: luxurious, extravagant...
负责: to be in charge of, to take responsibility for, to be to blame, conscientious...
称: to weigh, to state, to name, name, appellation, to praise...